opinions on expected horsepower with following mods on ka24e...

[240esseckz]

i am planning on doing the following to engine...and was wondering what peoples opinions were...

ka24e5zigen catback exhaust, hollowed cat, custom short intake, complete fuel system; z32 fuel filter, wahlbro pump, aem fuel rail, upgraded injectors...maybe 550cc, msd 6al, nology plugs/wires, headers, port and polished head, p/p headers, p/p throttle body, stage 2 cam, underdrive pulley, removed power steering, removed secondary butterflies, 91 octane. and maybe after all finished a 50-75 shot of nitrous...

[Kenrik]

550CC injectors is WAY overkill most Turbo people don't even need that.. And why only 91 octane? I run 93 in my car ever day and i'm not even turbo (yet)

[4gotn1]

dude ur waaay over kill on the fuel injectors i know i have a heavily modded ka24e. im stiill on stock fuel injectors and it pulls hard. i dont have any problems with them. and if your going to spray. use a wet shot. its just a little safer than dry.

ive got header, 3in test pipe, 3in kyo cat back, asp underdrive, msd blaster 2, magnecore wires, ngk plugs, custom short ram intake, removed ac, removed scv's, removed emissions (including egr), exedy stage 1 clutch, short shifter, port matched head & manifolds, chipped ecu, nismo motor mounts, vlsd, walboro pump, z32 fuel filter, ground kit, adj fpr, msd 6al, electric fan (16 inc) moble 1 synth fluids, and some more i cant think of right now. its a pretty long list. but i have yet to need to upgrade the injectors. my car ripped almost everything i raced. dude trust me once you get a few mods done you will be amazed at it. you dont need to go all out on it. but i had to run 93 with my ecu mods. i wanted best performance possiable. my car was also gutted severly. i only had a drivers seat and dash/doorpanels in it. that was it. everything else was gone.

trust me. u dont need all the added fuel yet. and i kept power steering too. its made it easy to turn with the 235's i ran on all 4 corners. but i would say get a lightned flywheel. my buddy has one with a act s/s clutch. his revs soo quick. hes also got nos. but i walk him when hes not spraying.

just get your basics down for now. i/h/e then i would suggest ignition after that.

[deviousKA]

Keep your stock injectors and chip your ecu.

I posted my stage 3 NA sohc tune over at eccs.hybridka.com , for about $50 in equipment you can run that in your ecu or tune to your liking.

I would add something like that to your list, good gains per dollar.

Im going to do up some dohc NA versions as well, all that is needed is a test car.

[240esseckz]

yea...the injectors were what i was hesitant on anyway...and the ecu tuning is what i realized i forgot to put on there after i already posted...i didnt feel like editing...but yea...thats what im thinkin on doin engine wise for now...than later on internals...such as pistons, rods, etc...

[9240sx]

Does AEM even make a fuel rail for the KA24??

[Kenrik]

Don't mess with the fuel system it's fine for N/A also need need for the Wahlbro.. or injectors.. overkill... I would personaly not take off the PS the most fun thing about the 240 is the way it handles and I can tell you it will not handle as well without PS!!! Nitrous? I have never liked it, I prefer to always have power rather then just when i hold down a button... Seems kinda like cheating you know?

Welcome to the forums!!
Modified by Kenrik at 8:52 PM 9/16/2005

[4gotn1]

i would imagine more than 150rwhp. i had a vlsd and 235's in the rear, and i had traction problems. i also could bark 2nd and 3rd pretty hard.

[Kenrik]

Yeah you're right 150 is a little low... what was I thinking stock is 120 at the wheels!.

[4gotn1]

i would prolly say on a fresh motor maybe 165ish.

[Bigvinnie]

Dunno why you guys make the injection sooo complicated. That injection won't even be necessary unless you also increase the CR of the engine. The stock 9. whatever depending if 89 or 90 will not compress the highly rich injection with stock CR.Just stay with the 270cc, screw a walbro, just go to the wrecking yard and pick up a 300z 90-96 fuel pump. Get the ecu tuned to advance the TTP, and advance your cams. 15btdc SUCKS a$$ for any engine you want high end power from.

[naed240sx]

I dont really think chirping the tires is a huge determinant of power. My 240 has a 160k mile ka with intake and 2.25 piping exhaust, vlsd, and 225 es100's in the back. It chirps 2nd and 3rd. Its all a matter of how quick you shift, when you shift, and the condition of your drivetrain and clutch. Of course, more powerful cars will bark the tires easier, but it just doesnt mean very much.

[Kenrik]

I dont really think chirping the tires is a huge determinant of power. My 240 has a 160k mile ka with intake and 2.25 piping exhaust, vlsd, and 225 es100's in the back. It chirps 2nd and 3rd. Its all a matter of how quick you shift, when you shift, and the condition of your drivetrain and clutch. Of course, more powerful cars will bark the tires easier, but it just doesnt mean very much.

He never said how wide his tires are.. Pattern... stickyness etc... dam almost any car can cherp a doughnut

[Kenrik]

BTW naed240sx I see you're missing your front markers... have you replaced them yet? I found them Super hard to find and over priced (they wanted like $100 for the two markers) The back markers are easy to find and can be picked up at a junkyard for $2 so I just put a set of back markers upfront!! A plus is that it looks great to have the red markers on a red car blends in better!

[4gotn1]

235/45zr17 michelin piolt sports. nice sticky tires. i should know. i work in a tire shop.

[naed240sx]

BTW naed240sx I see you're missing your front markers... have you replaced them yet? I found them Super hard to find and over priced (they wanted like $100 for the two markers) The back markers are easy to find and can be picked up at a junkyard for $2 so I just put a set of back markers upfront!! A plus is that it looks great to have the red markers on a red car blends in better!

Yeah, im missing the markers on both of the front sides. They are like 40 dollars each from the dealer(i think), which is insane. I was gonna do something about it, but my car is already so damn ugly, that I dont think it would help much. I like people to think my car is a pos, untill they go for a ride/get their *** handed too them by a ka 240 haha.

[wild_maxx]

i am running 550cc injectors.............. on 15psi from a t3/t4 turbo. keep them stock.

[sunnys14]

And why only 91 octane? I run 93 in my car ever day and i'm not even turbo (yet)

he lives in california, we get crap gas (91 octane)

[mmm240]

i agree with driving technique being HUGE in chirping tires, i mean if your on the gas when you shift you have an advantage right there. my buddy has a 98 s10 with a 2.2 and 235 goodrich traction ta's and he can chirp fourth! that's right fourth, granted there isn't too much in the back of a truck, but with the completely stock motor he's running that's damn near amazing. almost forgot- that's with a busted downpipe, it runs so crappy you almost always have to be on the gas so it wont stall!point is don't judge power by spinning tires, what good is all that power you have if you can't get it to the ground

[Ni2s4s0aSnX]

I didnt know AEM made a fuel rail for the 240sx. You might get anywhere from 45 to 75 horsepower, it depends.

[4gotn1]

i know i was getting it to the ground. my drving style is pretty relaxed. im normally shifting about 3000-4000 at most durnig city driving. no double clutching. not on the gas. just normal driving. it was a very very quick car.

[skydragoness]

Yeah, all of a sudden AEM/DC sports is making stuff for the 240sx. Has anyone had any feedback on DC's ceramic header? It looks perty.

[ddgsxr504]

I've heard that the DC header is pretty good but I stick by the fact they started off making Honda parts so maybe that makes me narrow minded!

I know that strut tower bar they make is F'in ugly!

[Dattebayo]

First of all:THERE ARE NO SECONDARY VALVES IN SOHC KA'S!!!

I dont think you will get more than 140 RWHP with these modifications. The SOHC is very hard to mod without a change from FI to carburated. Otherwise, if I were you, I would check out http://www.nismoparts.com for all the "old skool" S13 parts they have to offer.
Modified by 2BN_S13 at 4:33 PM 9/21/2005